Temperature dependence of the structure of Langmuir films of normal-alkanes on liquid mercury

H. Kraack, B. M. Ocko, P. S. Pershan, L. Tamam, M. Deutsch

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The temperature dependent phase behavior of Langmuir films of n-alkanes on mercury was studied using surface tensiometry and surface X-ray diffraction methods. A gas and several condensed phases of single, double, and triple layers of lying-down molecules were found to be dependent on chain lengths and temperatures. The alkanes studied showed transitions from a triple to a double to a single layer with increasing temperature. It was found that the film and bulk transitions were driven by the proliferation of gauche defects in the chain with increasing temperature.

Original languageEnglish
Pages (from-to)8003-8009
Number of pages7
JournalJournal of Chemical Physics
Volume121
Issue number16
DOIs
StatePublished - 22 Oct 2004

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